| 15种食用植物油脂肪酸的气相色谱-质谱分析 |
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| 引用本文： | 杨春英,刘学铭,陈智毅.15种食用植物油脂肪酸的气相色谱-质谱分析[J].食品科学,2013,34(6):211-214. |
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| 作者姓名： | 杨春英 刘学铭 陈智毅 |
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| 作者单位： | 广东省农业科学院蚕业与农产品加工研究所，广东省农产品加工公共实验室，广东 广州 510610 |
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| 基金项目： | 广东省中国科学院全面战略合作项目(2010B09031010);广东省重大科技专项(2009A020101002) |
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| 摘 要： | 建立了气相色谱-质谱联用法测定食用植物油中脂肪酸组成的方法。方法选用NaOH-甲醇溶液作为衍生试剂，色谱柱为极性毛细管柱，分流比为20:1，对15种常见植物油中的脂肪酸组成进行了分析，并用SPSS软件对植物油样品进行了系统聚类分析。结果表明，植物油中的脂肪酸组成以棕榈酸（C16:0）、硬脂酸（C18:0）、油酸（C18:1）和亚油酸（C18:2）为主；除椰子油外，其余14种植物油中不饱和脂肪酸含量均达75 %以上，大于饱和脂肪酸含量。
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| 关 键 词： | 脂肪酸 植物油 气相色谱-质谱联用 |
| 收稿时间： | 2011-12-22 |
Determination of Fatty Acid Profiles in Fifteen Kinds of Edible Vegetable Oil by Gas Chromatography-Mass Spectrometry |
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| YANG Chun-ying,LIU Xue-ming,CHEN Zhi-yi.Determination of Fatty Acid Profiles in Fifteen Kinds of Edible Vegetable Oil by Gas Chromatography-Mass Spectrometry[J].Food Science,2013,34(6):211-214. |
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| Authors: | YANG Chun-ying LIU Xue-ming CHEN Zhi-yi |
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| Affiliation: | Sericulture & Agri-Food Research Institute, Guangdong Open Access Laboratory of Agricultural Product Processing,Guangdong Academy of Agricultural Sciences, Guangzhou 510610, China |
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| Abstract: | A gas chromatography-mass spectrometry (GC-MS) method for rapid determination of fatty acids in vegetable oil was developed. The vegetable oil samples were derived by sodium hydroxide-methanol solution. The analysis was completed on a polar capillary column with split ratio of 20:1. The cluster analysis was applied for the classification of 15 vegetable oil samples through SPSS software. Results showed that major fatty acids were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1) and linoleic acid (C18:2) and the content of unsaturated fatty acids in these edible oil samples was more than 75%, which was much higher than that of saturated fatty acids. |
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| Keywords: | fatty acid profile vegetable oil gas chromatography-mass spectrometry (GC-MS) |
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